/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayEffectExecutionCalculation.h
Attempts to calculate the base value of a captured attribute given the specified parameters. Can fail if the gameplay spec doesn't have a valid capture for the attribute.
True if the base value was successfully calculated, false if it was not
bool AttemptCalculateCapturedAttributeBaseValue ( const [FGameplayEffectAttributeCaptureDefinition](API\Plugins\GameplayAbilities\FGameplayEffectAttributeCaptureD-) & InCaptureDef, float & OutBaseValue ) const